BR0114338A - Process to produce steel strip and low carbon steel produced by this process - Google Patents

Process to produce steel strip and low carbon steel produced by this process

Info

Publication number
BR0114338A
BR0114338A BR0114338-7A BR0114338A BR0114338A BR 0114338 A BR0114338 A BR 0114338A BR 0114338 A BR0114338 A BR 0114338A BR 0114338 A BR0114338 A BR 0114338A
Authority
BR
Brazil
Prior art keywords
strip
low carbon
carbon steel
produce
produced
Prior art date
Application number
BR0114338-7A
Other languages
Portuguese (pt)
Other versions
BR0114338B1 (en
Inventor
Kannappar Mukunthan
Lazar Strezov
Rama Mahapatra
Walter Blejde
Original Assignee
Nucor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3824539&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0114338(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nucor Corp filed Critical Nucor Corp
Publication of BR0114338A publication Critical patent/BR0114338A/en
Publication of BR0114338B1 publication Critical patent/BR0114338B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Metal Rolling (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

Steel strips and methods for producing steel strips are provided. In an illustrated embodiment, a method includes continuously casting molten low carbon steel into a strip of no more than 5 mm thickness having austenite grains that are coarse grains of 100-300 micron width; and providing desired yield strength in the cast strip by cooling the strip to transform the austenite grains to ferrite in a temperature range between 850° C. and 400° C. at a selected cooling rate of at least 0.01° C./sec to produce a microstructure that provides a strip having a yield strength of at least 200 MPa. The low carbon steel produced desired microstructure.
BRPI0114338-7A 2000-09-29 2001-09-28 process for producing steel strip in a continuous steel strip casting process. BR0114338B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPR0479 2000-09-29
AUPR0479A AUPR047900A0 (en) 2000-09-29 2000-09-29 A method of producing steel
PCT/AU2001/001215 WO2002026422A1 (en) 2000-09-29 2001-09-28 A method of producing steel

Publications (2)

Publication Number Publication Date
BR0114338A true BR0114338A (en) 2003-12-09
BR0114338B1 BR0114338B1 (en) 2012-02-22

Family

ID=3824539

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0114338-7A BR0114338B1 (en) 2000-09-29 2001-09-28 process for producing steel strip in a continuous steel strip casting process.

Country Status (15)

Country Link
US (2) US6585030B2 (en)
EP (1) EP1326723B9 (en)
JP (1) JP4901060B2 (en)
KR (2) KR100937798B1 (en)
CN (1) CN1287931C (en)
AT (1) ATE442925T1 (en)
AU (1) AUPR047900A0 (en)
BR (1) BR0114338B1 (en)
CA (1) CA2420492C (en)
DE (1) DE60139945D1 (en)
MX (1) MXPA03001971A (en)
MY (1) MY126851A (en)
RU (1) RU2294386C2 (en)
TW (1) TW575471B (en)
WO (1) WO2002026422A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9149868B2 (en) 2005-10-20 2015-10-06 Nucor Corporation Thin cast strip product with microalloy additions, and method for making the same
US9999918B2 (en) 2005-10-20 2018-06-19 Nucor Corporation Thin cast strip product with microalloy additions, and method for making the same
US10071416B2 (en) 2005-10-20 2018-09-11 Nucor Corporation High strength thin cast strip product and method for making the same

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR047900A0 (en) * 2000-09-29 2000-10-26 Bhp Steel (Jla) Pty Limited A method of producing steel
US7117925B2 (en) * 2000-09-29 2006-10-10 Nucor Corporation Production of thin steel strip
CN100446894C (en) * 2000-09-29 2008-12-31 纽科尔公司 Production of thin steel strip
BRPI0212499B1 (en) * 2001-09-14 2015-12-08 Nucor Corp process for producing continuous casting steel strip and thin steel strip produced by the same
US7485196B2 (en) * 2001-09-14 2009-02-03 Nucor Corporation Steel product with a high austenite grain coarsening temperature
US7690417B2 (en) 2001-09-14 2010-04-06 Nucor Corporation Thin cast strip with controlled manganese and low oxygen levels and method for making same
US7048033B2 (en) 2001-09-14 2006-05-23 Nucor Corporation Casting steel strip
ITMI20021512A1 (en) * 2002-07-10 2004-01-12 Danieli Off Mecc METHOD FOR THE ADJUSTMENT OF THE TEMPERATURE OF THE TAPE IN A CONTINUOUS CASTING METAL TAPE SYSTEM AND RELATED ACTUATING DEVICE
US20040144518A1 (en) 2003-01-24 2004-07-29 Blejde Walter N. Casting steel strip with low surface roughness and low porosity
NZ546189A (en) * 2003-10-10 2009-09-25 Ishikawajima Harima Heavy Ind Casting steel strip
WO2007079545A1 (en) * 2006-01-16 2007-07-19 Nucor Corporation Thin cast steel strip with reduced microcracking
US8562766B2 (en) 2006-02-27 2013-10-22 Nucor Corporation Method for making a low surface roughness cast strip
US20070199627A1 (en) 2006-02-27 2007-08-30 Blejde Walter N Low surface roughness cast strip and method and apparatus for making the same
AT504225B1 (en) * 2006-09-22 2008-10-15 Siemens Vai Metals Tech Gmbh METHOD FOR PRODUCING A STEEL STRIP
ES2325960T3 (en) * 2006-10-30 2009-09-25 Thyssenkrupp Steel Ag PROCEDURE FOR MANUFACTURING STEEL FLAT PRODUCTS FROM A STEEL THAT FORM A STRUCTURE OF COMPLEX PHASES.
KR101576963B1 (en) * 2007-05-06 2015-12-21 누코 코포레이션 A thin cast strip product with microalloy additions and method for making the same
KR20150127739A (en) * 2007-05-06 2015-11-17 누코 코포레이션 A thin cast strip product with microalloy additions, and method for making the same
US7984748B2 (en) 2008-07-03 2011-07-26 Nucor Corporation Apparatus for continuous strip casting
KR101563606B1 (en) * 2009-03-11 2015-10-27 잘쯔기터 플래시슈탈 게엠베하 Method for producing a hot rolled strip and hot rolled strip produced from ferritic steel
CN102002628B (en) * 2009-08-31 2012-07-25 宝山钢铁股份有限公司 Method for manufacturing low-carbon steel sheets
WO2011100798A1 (en) 2010-02-20 2011-08-25 Bluescope Steel Limited Nitriding of niobium steel and product made thereby
CN103476960B (en) 2011-03-28 2016-04-27 新日铁住金株式会社 Cold-rolled steel sheet and manufacture method thereof
PL2716783T3 (en) 2011-05-25 2019-01-31 Nippon Steel & Sumitomo Metal Corporation Hot-rolled steel sheet and process for producing same
CN103014539B (en) * 2011-09-26 2015-10-28 宝山钢铁股份有限公司 A kind of yield strength 700MPa grade high-strength high-tenacity steel plate and manufacture method thereof
US9156082B2 (en) 2013-06-04 2015-10-13 Nucor Corporation Method of continuously casting thin strip
CN106232851B (en) * 2014-04-23 2018-01-05 新日铁住金株式会社 Continuous variable cross section plate hot rolled steel plate, continuous variable cross section plate and their manufacture method
MX2017008027A (en) * 2014-12-19 2017-10-20 Nucor Corp Hot rolled light-gauge martensitic steel sheet and method for making the same.
MX2019010126A (en) * 2017-02-27 2019-10-15 Nucor Corp Thermal cycling for austenite grain refinement.
CN114713783B (en) * 2017-09-22 2024-07-23 纽科尔公司 Iterative learning control for periodic disturbances in twin roll strip casting with measured delay
WO2019195709A1 (en) * 2018-04-06 2019-10-10 Nucor Corporation High friction rolling of thin metal strip

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JPS6199630A (en) 1984-10-22 1986-05-17 Nippon Kokan Kk <Nkk> Manufacture of cold-rolled steel sheet
JPS61213322A (en) 1985-03-19 1986-09-22 Nippon Steel Corp Production of steel plate
JPH0689410B2 (en) 1986-03-06 1994-11-09 住友金属工業株式会社 Preventing rough skin during forming of cold-rolled steel sheet
JPS6362822A (en) 1986-09-01 1988-03-19 Kobe Steel Ltd Production of cold rolled steel sheet for deep drawing
JPH02236224A (en) 1989-03-09 1990-09-19 Nippon Steel Corp Production of high tensile steel plate excellent in toughness
JPH0317244A (en) * 1989-06-14 1991-01-25 Kobe Steel Ltd High strength hot rolled steel plate high having excellent workability and weldability and its manufacture
JP2768807B2 (en) * 1990-02-06 1998-06-25 新日本製鐵株式会社 Manufacturing method of thin steel sheet
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9149868B2 (en) 2005-10-20 2015-10-06 Nucor Corporation Thin cast strip product with microalloy additions, and method for making the same
US9999918B2 (en) 2005-10-20 2018-06-19 Nucor Corporation Thin cast strip product with microalloy additions, and method for making the same
US10071416B2 (en) 2005-10-20 2018-09-11 Nucor Corporation High strength thin cast strip product and method for making the same

Also Published As

Publication number Publication date
EP1326723A1 (en) 2003-07-16
JP2004508942A (en) 2004-03-25
TW575471B (en) 2004-02-11
RU2294386C2 (en) 2007-02-27
CA2420492C (en) 2009-12-01
EP1326723A4 (en) 2004-09-08
AUPR047900A0 (en) 2000-10-26
CA2420492A1 (en) 2002-04-04
KR100937798B1 (en) 2010-01-20
MXPA03001971A (en) 2004-09-10
DE60139945D1 (en) 2009-10-29
CN1287931C (en) 2006-12-06
CN1458870A (en) 2003-11-26
BR0114338B1 (en) 2012-02-22
US6818073B2 (en) 2004-11-16
JP4901060B2 (en) 2012-03-21
US20020043357A1 (en) 2002-04-18
WO2002026422A1 (en) 2002-04-04
EP1326723B9 (en) 2010-02-03
KR20030064760A (en) 2003-08-02
KR20090011017A (en) 2009-01-30
US20030205355A1 (en) 2003-11-06
US6585030B2 (en) 2003-07-01
MY126851A (en) 2006-10-31
EP1326723B1 (en) 2009-09-16
ATE442925T1 (en) 2009-10-15

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08H Application fees: decision cancelled [chapter 8.8 patent gazette]

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 22/02/2012, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2640 DE 10-08-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.